Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Antipodal\s+Focusing\s+Of\s+RF\s+Signals\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Antipodal\s+Focusing\s+Of\s+RF\s+Signals\s*$/: 3 ]

Total 3 documents matching your query.

1. Topband: Antipodal Focusing Of RF Signals (score: 1): Author: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>; Date: Mon, 29 Mar 2004 03:30:48 -0000; True antipodal focusing of transmitted RF signals does occur at HF frequencies. BUT as Bob Brown NM7M pointed out in an earlier post the ionosphere at medium frequencies is to heterogeneous to suppor; /archives//html/Topband/2004-03/msg00315.html (8,057 bytes)
2. RE: Topband: Antipodal Focusing Of RF Signals (score: 1): Author: "CHARLES HUTTON" <charlesh3@msn.com>; Date: Mon, 29 Mar 2004 21:25:56 +0000; I - and a lot of DX'ers who specialize in international MW DX - would disagree with this. There are many examples of incredible antipodal receptions, with recent examples being the 300 kw 1557 Taiwan; /archives//html/Topband/2004-03/msg00322.html (7,897 bytes)
3. RE: Topband: Antipodal Focusing Of RF Signals (score: 1): Author: Ronald Sekkel <py2fus@integral.com.br>; Date: Mon, 29 Mar 2004 21:58:49 -0300; Hello gentlemen ! Living in a place (Sao Paulo, Brazil) where the antipode is very RF active (Japan - actually the exact antipode would be a little south of Okinawa) I must say contacts with JA's are; /archives//html/Topband/2004-03/msg00327.html (10,766 bytes)

Current List: 1 - 3
Page: [1]